TWI398603B - Led lamp assembly - Google Patents

Description

Light-emitting diode lamp

The invention relates to a lighting device, in particular to a light-emitting diode lamp.

As a highly efficient light source, the light-emitting diode has been widely used in various fields due to its environmental protection, power saving and long life.

The conventional light-emitting diode lamp includes a flat-plate heat sink and a plurality of light-emitting diode modules mounted on one side of the heat sink. When the light emitting diode is illuminated, the light emitting diode module mounted on the side of the heat sink functions as an illumination. Since the light-emitting diode is only mounted on the plane of the heat sink body, the light emitted by the light-emitting diode can only be radiated outward from the side plane of the heat sink at a small angle, and the illumination range is limited and the illumination effect is not good.

A light-emitting diode lamp includes a circuit board, a plurality of light-emitting diode modules attached to the circuit board, and a reflector mounted on one side of the circuit board and covering one of the light-emitting diode modules. The reflector has a first extending plate extending obliquely and a second extending plate extending obliquely from a side of the first extending plate. The upper surface of the first and second extending plates is a light emitting surface and the upper surfaces are oriented in different directions. The light emitting diode modules respectively penetrate the first and second extension plates.

Compared with the prior art, the upper surface of the first and second extension plates of the reflector of the LED lamp of the present invention face different directions, so that the light emitted by the LED module can be emitted to the periphery of the LED lamp. Radiation allows the illumination of the LED lamp to be wider.

10‧‧‧ radiator

12‧‧‧Substrate

14‧‧‧Heat fins

20‧‧‧ boards

30‧‧‧Lighting diode module

40‧‧‧Reflector

41‧‧‧Installation Department

43‧‧‧Reflection Department

45‧‧‧Depression

100‧‧‧Lighting diode lamps

431‧‧‧lower surface

433‧‧‧Matement Department

435‧‧‧Connecting Department

4331‧‧‧First extension board

4333‧‧‧Second extension board

4335‧‧‧ receiving holes

1 is an assembled view of a light-emitting diode lamp of the present invention.

2 is an exploded view of the light-emitting diode lamp of FIG. 1.

3 is an inverted view of the reflector of the light-emitting diode lamp of FIG. 2.

Figure 4 is a light distribution curve of a conventional lamp.

FIG. 5 is a light distribution curve diagram of the light-emitting diode lamp of FIG. 1 .

Referring to FIG. 1 and FIG. 2 , the LED device 100 of the present invention includes a heat sink 10 , a circuit board 20 mounted on one side of the heat sink 10 , and a plurality of light emitting diodes uniformly distributed on one side of the circuit board 20 . The body module 30 and the reflector 40 mounted on the circuit board 20 and covering one of the LED modules 30 are disposed.

The heat sink 10 is made of a metal or alloy material having a high thermal conductivity, and includes a rectangular flat substrate 12 and a plurality of heat radiating fins 14 extending perpendicularly from a surface of one side of the substrate 12. The circuit board 20 has a rectangular shape and is attached to the opposite side surface of the substrate 12.

Referring to FIG. 3 at the same time, the reflector 40 is integrally formed, and includes two longitudinal mounting portions 41 and a reflecting portion 43 interposed between the two mounting portions 41. The upper surface of the reflecting portion 43 is for reflecting the light emitted by the LED module 30. The lower surface 431 of the reflecting portion 43 has a flat shape and is parallel to the lower surface of the two mounting portions 41. The lower surface of the second mounting portion 41 is above the lower surface 431 of the light reflecting portion 43. The light reflecting portion 43 and the two mounting portions 41 together form a central concave portion 45. The light reflecting portion 43 further includes two V-shaped engaging portions 433 extending upward from the lower surface thereof and a longitudinal connecting portion 435 at a middle portion of the two engaging portions 433 for connecting the two engaging portions 433. The upper surface of the second mounting portion 41 is disposed in parallel with the upper surface of the connecting portion 435. The two fitting portions 433 are symmetrically distributed with respect to the longitudinal center line of the connecting portion 435. Each of the engaging portions 433 includes a first extension extending obliquely from the inner side of the mounting plate 41 and arranged in a triangular shape. The extension plate 4331 and the second extension plate 4333 are formed in a triangular shape and extend obliquely toward the first extension plate 4331 from the side of the connection portion 435. The upper surfaces of the first and second extension plates 4331, 4333 are longitudinally long plates and the inner edges are connected to form a V-shaped structure with a certain angle. The first and second extension plates 4331 and 4333 are each provided with a plurality of through holes 4335. The inner surface of each receiving hole 4335 is for reflecting the light emitted by the LED module 30. The receiving holes 4335 are upper and lower, and the opposite sides are slightly closer to the center, and the curvatures of the opposite sides are different, so that the inner surface of each receiving hole 4335 is inclined with respect to the lower surface of the light reflecting portion 431. The light emitted by the LED module 30 is uniformly reflected in various directions.

During installation, the circuit board 20 is fixed to one side of the substrate 12 of the heat sink 10, and then the reflector 40 is fixed to one side of the circuit board 20 and the LED module 30 of the circuit board 20 is passed through the reflector 40. The corresponding receiving hole 4335 is received in the receiving hole 4335. At this time, the two mounting portions 41 of the reflector 40 are attached to opposite side edges of the circuit board 20, and the lower surface 431 of the reflecting portion 41 is spaced apart from the upper surface of the circuit board 20. When the size of the circuit board 20 is small, it can be stuck in the recess 45 of the reflector 40, and the lower surface 431 of the reflector 41 is attached to the upper surface of the circuit board 20.

In use, the light emitted by the LED module 30 is reflected by the inner surface of the receiving hole 4335 of the reflector 40, and part of the light is radiated into the surrounding environment, and the other portion of the light is reflected by the upper surface of the mating portion 433 of the reflecting portion 43. Thereafter, the radiation is radiated to the opposite sides at an angle, thereby increasing the illumination range of the light-emitting diode lamp 100. Moreover, due to the specific shape of the receiving hole 4335 of the reflector 40, the light emitted by the LED module 30 is reflected by the light-emitting diode module 30, and is more uniformly radiated in all directions.

Please also refer to Figure 4 and Figure 5. Figure 4 is a light distribution curve of a conventional wattage lamp of 36 watts, wherein the A curve represents the light intensity curve of the fluorescent lamp between 0 ° and 180 °, and the B curve shows that the fluorescent lamp is between 90 ° and 270 °. The light intensity curve between the two. 5 is a light distribution curve of a 12-watt light-emitting diode lamp 100 of the present invention, wherein a C curve represents a light intensity curve of the light-emitting diode lamp 100 between 0° and 180°, and a D curve represents a light-emitting diode. The light intensity curve of the luminaire 100 between 90° and 270°. 4 and 5, the present invention is issued Compared with the conventional lamp, the light diode lamp 100 has a light intensity higher than that of the conventional fluorescent lamp in the case where the power is smaller than that of the conventional lamp, and the energy is saved while satisfying the illumination intensity.

It can be understood that, in the present invention, the connecting portion 435 of the light reflecting portion 43 and the two second extending plates 4333 connected to opposite sides of the connecting portion 435 can form a new reflector or connect the second extending plates 4333 together. A new reflector can be formed, and one of the fitting portions 433 of the reflecting portion 43 can be separately formed into another new reflector.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

10‧‧‧ radiator

12‧‧‧Substrate

14‧‧‧Heat fins

20‧‧‧ boards

30‧‧‧Lighting diode module

40‧‧‧Reflector

41‧‧‧Installation Department

43‧‧‧Reflection Department

45‧‧‧Depression

100‧‧‧Lighting diode lamps

433‧‧‧Matement Department

435‧‧‧Connecting Department

4331‧‧‧First extension board

4333‧‧‧Second extension board

4335‧‧‧ receiving holes

Claims (7)

A light-emitting diode lamp includes a circuit board, a plurality of light-emitting diode modules attached to the circuit board, and a reflector mounted on one side of the circuit board and covering one of the light-emitting diode modules. The improvement is that the reflector has a first extension plate extending obliquely and a second extension plate extending obliquely from a side of the first extension plate, wherein the upper surface of the first and second extension plates is a light-emitting surface and two The surface is oriented in different directions, wherein the reflector further comprises two mounting portions sandwiching the first and second extension plates therebetween, the two mounting portions cooperate with the circuit board to fix the reflector to the circuit board, and the illumination The diode modules are respectively inserted into the first and second extension plates. The illuminating diode lamp of claim 1, wherein the first and second extension plates are arranged in a triangle shape and the lower surface thereof is coplanar. The illuminating diode lamp of claim 1, wherein the upper surfaces of the first and second extension plates are longitudinally long plates and are disposed away from the back to form an inverted V-shaped structure. The illuminating diode lamp of claim 1, wherein the upper surfaces of the first and second extension plates are longitudinally long plates and are disposed opposite each other to form a V-shaped structure. The illuminating diode lamp of the first aspect of the invention, wherein the first and second extension plates are each provided with a plurality of through holes, and the light emitting diode modules are received in the receiving holes. The illuminating diode lamp of claim 5, wherein each of the accommodating holes has a funnel shape that is large and small, and the opposite sides are slightly closer to the center, so that the inner surface thereof is opposite to the lower surface of the light reflecting portion. Tilt setting. The illuminating diode lamp according to any one of claims 1 to 5, wherein the reflector is integrally formed, and the surface of the light distribution portion reflects the light emitted by the LED module.